Looking Beyond the Surface with Angle-Resolved Photoemission Spectroscopy

Abstract

The issue of surface sensitivity, and its relationship with interpretation of spectral features observed in angle-resolved photoemission spectroscopy experiments is investigated. Rather than attempt to make an explicit connection to bulk electronic structure calculations, we take the new approach of exploring this issue within the natural context of a vacuum-terminated crystalline slab. Doing so, we reconcile the empirical reality of reliable kz fidelity with acute surface sensitivity of this technique. In addition, we identify several critical issues which impact the estimation of kF , band velocity, and self-energy from photoemission experiments.

8 pages, 6 figures

References in corpus (4)

• Surface and bulk electronic structures of LaOFeAs studied by angle resolved photoemission spectroscopy
• Signature of band inversion in the antiferromagnetic phase of axion insulator candidate EuIn2As2
• Buried double CuO chains in YBa${}_2$Cu${}_4$O${}_8$ uncovered by nano-ARPES
• The Three-Dimensional Electronic Structure of LiFeAs: Strong-coupling Superconductivity and Topology in the Iron Pnictides

Cited by in corpus (1)

• Reexamining Circular Dichroism in Photoemission From a Topological Insulator